Writing pen



March 1 1936 G. S. WALTER WRITING PEN Filed Dec. 12, 1934 5.27

751292955 WS%M Patented Mar. 10, 1936 UNITED STATES PATENT OFFICE 12Claims.

This invention relates to pens, and particularly to a type of pen, inthe use of which, considerable pressure is frequently exerted on thewriting end thereof, as, for example, in the use of stylographic penswhich are used and are especially well adapted for making carbon copiesof original writings.

One object of the present invention is to provide a construction .andarrangement whereby portions of the pen are protected against scoopingup dust, dirt, paper fibers and the like, which tend to clog the inkpassage and seriously interfere with the efficient operation of the pen.

Another object of the invention is to provide a pen of the characterdescribed with a self-contained mechanical filler, or, in other words, apen of the stylographic type which is capable of being convenientlyfilled without resorting to the old method of using a dropper or thelike, and

which is still employed in filling pens of the stylographic type.

,Another object of the invention is to provide a stiff, non-spreadingpen point capable of receiving pressures suitable forproducing carboncopies.

Another object of the invention is to provide a novelform of vent foradmitting air .to the reservoir to replace the ink as it is removedtherefrom in the operationof the pen, and to provide for convenientfilling of the ink reservoir.

Another object of the invention is to provide a construction andarrangement wherein the writing end portion of the pen-point member ismovable laterally within and with respect tothe surrounding nozzleportion of the pen, thereby varying the area ofthe ink channel or inkspace at the sides of the pen-point member.

A further object of the invention is to provide a pen of the characterdescribed having a translucent nozzle portion ,for ascertaining when the49 supply of ink for writing purposes is getting low.

A still further object of the invention is to improve devices of thecharacter described in sundry details hereinafter referred to andparticularly pointed out in the appended claims.

One embodiment of the present invention is shown for illustrativepurposes in the accompanying drawing, in which:

Fig. 1 is an elevational view, partly in section, of a pen embodyingfeatures of the present in- 5 vention;

Fig. '2 is an enlarged longitudinal sectional ele vational view takensubstantially as indicated by the line 2--2 of Fig. ,1, the centralportion of Fig. 2 being broken away to permit of showing the 55structure'on a considerably enlarged scale;

Fig. 3 is an enlarged transverse sectional elevational view through thestructure adjacent the writing end of the pen, and taken on the line3--3 of 'Fig. 2;

Fig. 4 is a transverse sectional elevational view taken on the line 44of Fig. 2; and

Fig. 5 is a further enlarged fragmentary sectional elevational 'viewthrough a portion of the writing end of the pen showing the pen-pointmember in its position with relation to the nozzle when the writingpoint is in engagement with a writing surface.

The illustrative embodiment of the present invention, as shown in thedrawing, comprises a body portion, indicated as a whole by the numeral lI, consisting of a hollow tubular barrel l2 having a bulb I3 formed ofrubber or other suitable flexible and resilient material positioned inone end of the barrel l2, and a nozzle, indicated as a whole by thenumeral 14, positioned in the opposite end thereof, the said nozzlebeing shown, in the present instance, as comprising a tapered portion 15formed preferably of a suitable translucent material such, for example,as glass or the like, and having a tubular shell or sleeve l6 positionedtherein and extending beyond the outer end thereof, the said barrel l2and nozzle l4 providing a container or reservoir I! for maintaining asupply of ink within the device for writing purposes.

Mounted within the body portion I l and shown, in the present instance,as positioned within the open end portion of the bulb i3 is a holder l8shown, in the present instance, as provided with a recess l9 and formed,preferably, of rubber or other suitable flexible and resilient material,said holder l8 having apertures 2| formed therein communicating with theink reservoir l1 and with the interior of the bulb l3.

Mounted in the holder I8, preferably adjacent the central portionthereof and adjacent the recess i9, is a pen-point member, indicated asa whole by the numeral 22, the member 22 being shown, in the presentinstance, as secured against longitudinal movement with respect to theholder 18 by means of annular shoulders 23 formed on the member 22 atopposite sides of the holder H3.

The member 22, as shown in the drawing, is adapted to extend through theshell or sleeve It of the nozzle M in spaced relation with respectthereto to provide an ink channel 24 communieating with the reservoir[1, the member 22 being adapted to extend beyond the discharge end ofthe shell I 6 and ink channel 24 to provide a writing end 25 shown, inthe present instance,

as provided with a flared or annular flange portion 26 adapted to engagea writing surface as shown by the line 21 in Fig. 5, where it will beapparent that the writing end of the pen-point member 22 extends beyondthe end of the sleeve l6 of the nozzle l4 and the discharge end of theink channel 24, and it will be apparent also that a line, such as theplane of a writing surface, as 2'! for example, touching the extremeouter edges or points of contact of the sleeve I6 and writing end 25 isofiset outwardly from the inner edge I 6a of the sleeve 16 in a mannerto maintain said inner edge of the sleeve l6 of the nozzle out ofengagement with the writing surface when the pen is in writing positionwith respect thereto, thereby protecting the inner edge [6a of thenozzle against scooping up dust, dirt, paper fibers and the like, whichwould tend to clog the ink passage 24 and seriously interfere with theefiicient operation of the pen.

It will be noted also by reference, particularly, to Fig. 5 that byreason of the mounting of the pen-point member 22 in the resilientholder ill, the outer, free or writing end 25 of the member 22, when inengagement with awriting surface, may be moved laterally with respect tothe sleeve [6 of the nozzle M in a manner to increase the distancebetween the inner surface of the sleeve 16 and the outer surface of themember 22 at one side thereof, thereby enlarging the portion of the inkchannel 24 adjacent the underside of the member 22 and permitting a freeflow of the ink therethrough during the writing operation, and it willbe noted also that when pressure on the writing end 25 of the member 22is relieved, the resiliency of the holder l8 will cause the member 22 toassume a substantially central position with respect to the sleeve l6,as shown in Fig. 2, in a manner to retain the ink against accidentaldischarge from the reservoir through the ink channel 24.

The pen-point member 22 is shown, in the present instance, as ofsubstantially tubular form having a longitudinally disposed air vent andfiller opening 28 formed therein and extending therethrough to permit ofthe admission of air into the bulb l3 and the ink reservoir I! toreplace the ink removed therefrom during the operation of the pen, andproviding also, an intake passage through which ink may be drawn intothe pen during the filling operation by manipulation of the bulb I3, theink during the filling operation being discharged from the upper orinner end of the member 22 into the lower end of the bulb l3, from whichit may pass through the apertures 2| into the reservoir IT.

For protecting the bulb l3 against accidental compression when the penis in use, a cap or cover 29 may be screw threaded or otherwise securedto the upper end of the barrel l2 as clearly shown in Fig. 2.

It will be apparent that by the use of a translucent material in theconstruction of the tapered portion l5 of the nozzle M, the user mayascertain when the supply of ink in the reservoir is getting low so thatthe pen'may be refilled before the supply of ink is completelyexhausted.

It will be observed from the foregoing description that the presentinvention provides a novel construction and arrangement whereby the tipof the nozzle portion N5 of the pen is protected against scooping updust, dirt and paper fibers or the like whichwould tend to clog the inkpassage 24, and that by reason of the structure and arrangement shownand described, the present invention provides a self-containedmechanical filler by which the reservoir may be filled without resortingto the old method now employed in filling pens of the stylographic type.

It will be observed also that the present invention provides the novelmeans for venting the ink reservoir and that by reason of the novelmounting of the pen-point member, the effective area of the ink channelmay be controlled to insure a proper flow of ink therethrough.

Obviously, the present invention is not limited to the preciseconstruction and arrangement shown and described as the same may bevariously modified. Moreover, all of the features of the invention neednot be used conjointly as the same may be used to advantage in variouslydifferent combinations and subcombinations.

What I claim as new and desire to secure by Letters Patent is:

1. In a fountain pen having a body portion comprising a hollow barreland nozzle -to provide an ink reservoir in said body portion, thecombination of a pen-point member fulcrumed adjacent its inner end insaid body portion and extending through said nozzle in spaced relationthereto to provide an ink channel communicating with said reservoir,said point member having a writing end extending beyond the dischargeend of said nozzle .and having a laterally extending annular flangeformed thereon comprising a hollow barrel and nozzle to provide an inkreservoir in said body portion, the combination of a pen-point memberfulcrumed adjacent its inner end in said body portion and extendingthrough said nozzle in spaced relation thereto to provide an ink channelcommunicating with said reservoir, said point member having a writingend movable laterally with respect to said nozzle and extending beyondthe discharge end thereof, said writing end having a laterally extendingannular flange formed thereon engageable with a writing surface formaintaining the inner edge of said nozzle out of engagement with saidsurface.

3. In a fountain pen having a body portion comprising a hollow barreland nozzle to provide an ink reservoir in said body portion, thecombination of a resilient holder mounted in said body portion, a penpoint member fulcrumed adjacent its inner end in said holder andextending through said nozzle in spaced relation thereto to provide anink channel communicating with said reservoir, said point member havinga writing end movable laterally with respect to said nozzle andextending beyond the discharge end thereof, said writing end having alaterally extending annular flange thereon engageable with a writingsurface for maintaining the inner edge of said nozzle out of engagementwith said surface.

4. In a fountain pen having a body portion comprising a hollow barrelopen at its ends and a tubular nozzle mounted in one end thereof toprovide an ink reservoir in said body portion, the combination of anelongated hollow penpoint member fulcrumed in said body portion andcommunicating with said ink reservoir for admitting air thereto, saidpoint member extending through said nozzle in spaced relation thereto toprovide an ink channel communicating with said reservoir, said pointmember having a writing end movable laterally with respect to saidnozzle and extending beyond the end thereof and engageable with awriting surface for maintaining the inner edge of said nozzle out ofengagement with said surface.

5. In a fountain pen having a body portion comprising a hollow barrelopen at its ends and a tubular nozzle mounted in one end thereof toprovide an ink reservoir in said body portion, the combination of anelongated hollow tubular pen-point member fulcrumed adjacent its innerend in said body portion and communicating with said ink reservoir foradmitting ink and air thereto, said point member extending through saidnozzle in spaced relation thereto to provide an ink channelcommunicating with said reservoir, said point member having a writingend movable laterally with respect to said nozzle and extending beyondthe end thereof, said writing end having a laterally extending annularflange formed thereon engageable with a writing surface for maintainingthe inner edge of said nozzle out of engagement with said surface.

6. In a fountain pen having a body portion comprising a hollow barreland nozzle to provide an ink reservoir in said body portion, thecombination of a hollow bulb of resilient material mounted on one end ofsaid barrel and communicating with said reservoir, an elongated hollowtubular pen-point member fulcrumed in said body portion andcommunicating with the interior of said bulb and reservoir, said pointmember extending through said nozzle in spaced relation thereto toprovide an ink channel communicating with said reservoir and having awriting end movable laterally with respect to said nozzle and extendingbeyond the end thereof, said writing end being adapted to engage awriting surface for maintaining the inner edge of said nozzle out ofengagement with said surface.

7. In a fountain pen having a body portion comprising a hollow openended barrel and a tubular nozzle mounted at one end thereof to providean ink reservoir in said body portion, the combination of a hollow bulbof resilient material mounted on one end of said barrel, a resilientholder mounted in said body portion and having apertures formed thereincommunicating with said reservoir and the interior of said bulb, anelongated hollow tubular pen-point member fulcrumed' in said holder andcommunicating with the interior of said bulb, said point memberextending through said nozzle in spaced relation thereto to provide anink channel communicating with said reservoir and having a writing endmovable laterally with respect to said nozzle and extending beyond theend thereof, said writing end having a laterally extending annularflange formed thereon engageable with a writing surface for maintainingthe inner edge of said nozzle out of engagement with said surface.

8. In a fountain pen having a body portion comprising a hollow openended barrel and a tubular nozzle mounted at one end thereof to providean ink reservoir in said body portion, the combination of a hollow bulbof resilient material mounted on one end of said barrel, a resilientholder having a recess formed therein adjacent the central portionthereof mounted in said body portion, said holder having aperturesformed therein communicating with said reservoir and the interior ofsaid bulb, an elongated hollow tubular pen-point member fulcrumed insaid holder adjacent said recess and communicating with the interior ofthe bulb, said point member extending through said nozzle in spacedrelation thereto to provide an ink channel communicating with saidreservoir and having a writing end movable laterally with respect tosaid nozzle and extending beyond the end thereof, said writing endhaving a laterally extending annular flange formed thereon engageablewith a writing surface for maintaining the inner edge of said nozzle outof engagement with said surface.

9. In a fountain pen having a body portion comprising a hollowopen-ended barrel and a tubular translucent nozzle mounted in one endthereof to provide an ink reservoir in said body portion, thecombination of a hollow bulb of resilient material mounted on one end ofsaid barrel, a resilient holder mounted in fixed relation with respectto said body portion and having apertures communicating with saidreservoir and the interior of said bulb, an elongated pen-point membermounted in and extending through said holder and having a filler andvent opening extending longitudinally of the point member from end toend thereof and communicating with the interior of said bulb, meansadjacent one end portion of the point member cooperating with saidholder for securing said member against longitudinal displacement withrespect to the holder, the opposite end portion of said point memberextending through said nozzle in spaced relation thereto to provide anink channel communicating with said reservoir, said point member havinga writing end movable laterally with respect to said nozzle andextending beyond the end thereof, said writing end having a laterallyextending annular flange formed thereon engageable with a writingsurface for maintaining the inner edge of said nozzle out of engagementwith said surface.

10; In a fountain pen having a body portion comprising a hollow barreland nozzle to provide an ink reservoir in said body portion, thecombination of a pen point member positioned in said body portion andextending through said nozzle in spaced relation thereto to provide anink channel communicating with said reservoir, said point member havinga writing end extending beyond the discharge end of said nozzle, and alaterally extending flange portion formed on the outer end of saidmember adjacent the discharge end of said ink channel and adapted tooverlie a portion of the end of said nozzle.

11. In a fountain pen having a body portion comprising a hollow barreland nozzle providing an ink reservoir in said body portion, thecombination of a tubular member positioned in said body portion andcommunicating with said reservoir, said tubular member extending throughsaid nozzle in spaced relation thereto to provide an ink channelcommunicating with said reservoir.

12. In a fountain pen having a body portion comprising a hollow barreland tubular nozzle to provide an ink reservoir in said body portion, thecombination of a tubular member positioned in said body member andcommunicating with said reservoir to provide a filler and Vent openingtherefor, said tubular member extending through the opening in saidnozzle in spaced relation thereto to provide an ink channelcommunicating with said reservoir.

GEORGE S. WALTER.

